[go: up one dir, main page]

EP0296450A1 - Résines époxy contenant des groupes oxazolidone - Google Patents

Résines époxy contenant des groupes oxazolidone Download PDF

Info

Publication number
EP0296450A1
EP0296450A1 EP88109419A EP88109419A EP0296450A1 EP 0296450 A1 EP0296450 A1 EP 0296450A1 EP 88109419 A EP88109419 A EP 88109419A EP 88109419 A EP88109419 A EP 88109419A EP 0296450 A1 EP0296450 A1 EP 0296450A1
Authority
EP
European Patent Office
Prior art keywords
diisocyanates
groups
diisocyanate
bisepoxide
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88109419A
Other languages
German (de)
English (en)
Other versions
EP0296450B1 (fr
Inventor
Bernhard Dr. Hess
Hanns Peter Dr. Müller
Heinrich Dipl.-Ing. Heine
Bert Dr. Brassat
Werner Prof. Dr. Klöker
Walter Dr. Uerdingen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke DSM NV
Original Assignee
Bayer AG
DSM NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG, DSM NV filed Critical Bayer AG
Priority to AT88109419T priority Critical patent/ATE69825T1/de
Publication of EP0296450A1 publication Critical patent/EP0296450A1/fr
Application granted granted Critical
Publication of EP0296450B1 publication Critical patent/EP0296450B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/58Epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/003Polymeric products of isocyanates or isothiocyanates with epoxy compounds having no active hydrogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/16Catalysts
    • C08G18/166Catalysts not provided for in the groups C08G18/18 - C08G18/26
    • C08G18/168Organic compounds

Definitions

  • the invention relates to a process for the preparation of oligomeric, oxazolidone-containing polyepoxides from bisepoxides and diisocyanates.
  • trimerization of the isocyanates should only take place to a small extent.
  • EP-OS 113 575 describes the production of powder coatings containing oxazolidone groups and having epoxy groups, which are prepared by reacting diisocyanates with bisepoxides using quaternary ammonium halides as catalysts. The reaction is not always quantitative in the desired sense. In addition, a large amount of catalyst is required, which remains in the resin and can impair storage stability.
  • the invention thus relates to a process for the preparation of oligomeric, oxazolidone-containing polyepoxides from bisepoxides and diisocyanates, characterized in that at 140-180 ° C in the presence of a phosphonium salt as catalyst, either bisepoxide ethers with OH groups corresponding to an OH number of at least 2 , with aromatic diisocyanates, which two differently reactive NCO groups in one amount of at least 1/4 of the weight of the diisocyanate, or bisepoxide esters with OH groups corresponding to an OH number of at least 2, with aromatic, aliphatic or cycloaliphatic diisocyanates, preferably those containing differently reactive NCO groups in an amount of at least 1 / 4 of the weight of the diisocyanate, are reacted with one another in a quantitative ratio of NCO group to epoxy groups of 1: 1.4 to 1: 2.5.
  • the bisepoxide ethers suitable for the processes according to the invention are diglycidyl ethers of dihydric, aliphatic alcohols having 2 to 4 carbon atoms or dihydric phenols such as bisphenol A or F or sulfonyl or thionyl bisphenol or their core-substituted derivatives, or bisglycidyl esters of dicarboxylic acids such as succinic acid , Adipic acid, azelaic acid, sebacic acid or dimerized fatty acid, ortho-, iso- or terephthalic acid, tetra- or hexahydrophthalic acid or their ring-alkylated derivatives.
  • dicarboxylic acids such as succinic acid , Adipic acid, azelaic acid, sebacic acid or dimerized fatty acid, ortho-, iso- or terephthalic acid, tetra- or hexahydrophthalic acid or their ring-alkylated
  • Preferred bisepoxides are bisphenol A or F bisglycidyl ether and hexahydrophthalic acid bisglycidyl ester.
  • the bisepoxides mentioned have an OH number greater than 2 (> 2).
  • the OH groups can have arisen in the preparation of the bisepoxides from diols or dicarboxylic acids with epichlorohydrin or by targeted conversion of OH-group-free bisepoxides with further mono- or polyols, mono- or polycarboxylic acids, or by partial saponification of the epoxide groups of a polyepoxide.
  • the OH number of the bisepoxides mentioned can e.g. according to Chimica, Vol. 33, 1979, No. 3, page 84 titrated in addition to epoxy groups or determined from the IR spectrum using a calibration curve.
  • aromatic and aliphatic diisocyanates preferably aromatic diisocyanates, can be used.
  • aromatic dissocyanates with two differently reactive NCO groups can be used in combination with diepoxide ethers, e.g. o, p-tolylene diisocyanate, diphenylmethane-2,4'-diisocyanate, naphthylene diisocyanate-1,3 alone or as a mixture with one another or as a mixture with other diisocyanates which have two equally reactive NCO groups, e.g. in a mixture with diphenylamethane-4,4'-diisocyanate, o, o-tolylene diisocyanate, naphthylene diisocyanate-1.5.
  • the diisocyanates with different reactive NCO groups should make up at least 1/4 of the total weight of the diisocyanates.
  • aliphatic diisocyanates such as hexamethylene-1,6-diisocyanate or cycloaliphatic diisocyanates such as isophonone diisocyanate, methylene biscyclohexyl diisocyanate-4,4 'or -2,4' can be used in combination with the bisepoxide esters.
  • Diisocyanates containing two differently reactive NCO groups are preferred. They are used in an amount that is at least 1/4 of the total weight of the diisoanates used.
  • Isocyanates which contain two differently reactive NCO groups are preferably used.
  • the catalysts suitable for the process according to the invention are phosphonium salts of the formula (I) in which R1, R2, R3 and R4 independently of one another are C5-C10-cycloalkyl, C1-C8-alkyl and C6-C10-aryl and X represents C2-C6 carboxylate and halogen such as Fl, Cl, Br and J, which are named, for example, in DE-OS 21 230 157.
  • the cyclohexyl, C1-C8-alkyl or phenyl-substituted phosphonium salts are preferred in the form of the chlorides, bromides, iodides or acetates.
  • the catalysts are used in amounts of 0.005 to 1.0% by weight, preferably 0.01 to 0.5% by weight, based on bisepoxide.
  • the process is carried out at a temperature of 140 to 180 ° C, preferably from 150 to 170 ° C.
  • the quantitative ratio in which the bisepoxides are reacted with the diisocyanates is 1.4 to 2.5 epoxy groups per NCO group, preferably 1.6 to 2.2 epoxy groups per NCO group. In any case, reactive epoxy groups remain in the end product, which are available for subsequent reactions or for crosslinking. The smaller the excess of epoxy groups compared to the NCO groups, the higher the molecular weight of the modified epoxy resins and the higher their melt viscosity.
  • the polyepoxides containing oxazolidone groups according to the invention can be mixed with other liquid or solid epoxy resins or reactive diluents and cured with the aid of the usual hardeners such as polyamines, acid anhydrides or polyisocyanates, at customary temperatures of 10 to 150 ° C.
  • the hardening products show increased tensile strength, elongation at break, impact strength, ball pressure hardness and heat resistance compared to oxazolidone group-free comparison products.
  • the amount of bisepoxide resins and catalysts listed in Table I is weighed into a flask with stirrer and gas inlet tube and heated to 160 ° C. under nitrogen.
  • the diisocyanate is added dropwise to the melt so quickly that a temperature of about 170 ° C. is maintained, which can be controlled by switching off the heating or by cooling.
  • stirring is continued at 160 ° C. until the calculated epoxy value is reached and no reactive NCO can be detected.
  • the product obtained is filled hot as a melt. It freezes when it cools down.
  • the examples and comparative examples show that the desired oxazolidone epoxy resins can only be obtained when the epoxy resins containing OH groups according to the invention are used in combination with the diisocyanates according to the invention containing unreactively reactive NCO groups with phosphonium salt catalysis at about 160 ° C.
  • OH number was determined by titration according to the quotation on page 4).
  • X18 bisphenol A bisglycidyl ether, pure. (OH number: 0, epoxy equivalent weight: 172)
  • X20 bisphenol A bisglycidyl ether, technical. (OH number: 15, epoxy equivalent weight: 186)
  • X100 bis-glycidyl hexahydrophthalate, technical.
  • T65 mixture of 65% by weight of o, p-tolylene diisocyanate and 35% by weight of o, o-tolylene diisocyanate
  • T100 o, p-tolylene diisocyanate
  • MDI diphenylmethane diisocyanate-4,4 ′
  • MDI-M mixture of 55% by weight diphenylmethane diisocyanate-4,4 ′ and 45% by weight diphenylmethane diisocyanate-2,4 ′
  • IPDI isophorone diisocyanate, pure.
  • Catalyst A tetrabutylphosphonium bromide
  • Catalyst B benzyl triphenylphosphonium chloride
  • Table I Example: 1 2nd 3rd 4th 5 6 7 Comparative example: 1a 1b 1c
  • Catalyst A 0.22 0.22 0.22 0.23 0.24 0.24 0.23 0.23 - 0.3
  • Catalyst B - - - - - - - - - 0.23 - Diisocyanate: T65 - - - - 57.3 - - - - - - T100 - - - - - 55.6 -
  • composition of the mixtures :

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Epoxy Resins (AREA)
  • Organic Insulating Materials (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
EP88109419A 1987-06-24 1988-06-14 Résines époxy contenant des groupes oxazolidone Expired - Lifetime EP0296450B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88109419T ATE69825T1 (de) 1987-06-24 1988-06-14 Oxazolidongruppen enthaltende epoxidharze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873720759 DE3720759A1 (de) 1987-06-24 1987-06-24 Oxazolidongruppen enthaltende epoxidharze
DE3720759 1987-06-24

Publications (2)

Publication Number Publication Date
EP0296450A1 true EP0296450A1 (fr) 1988-12-28
EP0296450B1 EP0296450B1 (fr) 1991-11-27

Family

ID=6330137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109419A Expired - Lifetime EP0296450B1 (fr) 1987-06-24 1988-06-14 Résines époxy contenant des groupes oxazolidone

Country Status (4)

Country Link
EP (1) EP0296450B1 (fr)
JP (1) JPS6420227A (fr)
AT (1) ATE69825T1 (fr)
DE (2) DE3720759A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4007141C1 (fr) * 1990-03-07 1991-04-11 Felix Boettcher Gmbh & Co, 5000 Koeln, De
EP0478606A4 (en) * 1989-06-06 1992-05-13 The Dow Chemical Company Epoxy-terminated polyoxazolidones, process of preparation, and electrical laminates therefrom
EP0449072A3 (en) * 1990-03-22 1992-09-16 Vianova Kunstharz Aktiengesellschaft Process for the preparation of cationic binders and their application
EP0530812A1 (fr) * 1991-09-05 1993-03-10 Nippon Paint Co., Ltd. Composition de résine thermodurcissable contenant un composant oxazolidinone polyfonctionnel et un composant polyamine
WO1994002524A1 (fr) * 1992-07-17 1994-02-03 Siemens Aktiengesellschaft Melange prepolymere de resines epoxy a structures oxazolidinoniques
US5496892A (en) * 1992-07-17 1996-03-05 Siemens Aktiengesellschaft Oxazolidinone structures-containing prepolymeric epoxy resin mixture
US5591813A (en) * 1993-05-21 1997-01-07 Hitachi Chemical Company, Ltd. Amide group-containing diisocyanates and amide group-containing epoxy resins
EP0970980A4 (fr) * 1997-03-27 2000-06-14 Mitsubishi Rayon Co Composition de resine epoxyde pour plastique renforce de fibre de verre, preimpregne et moulage tubulaire produit au moyen de cette composition
WO2000034351A1 (fr) * 1998-12-11 2000-06-15 The Dow Chemical Company Composition de resine polyoxazolidone adhesive preparee a partir de polyepoxides et de polyisocyanates
US6225377B1 (en) 1992-07-17 2001-05-01 Siemens Aktiengesellschaft Blending epoxy resin-polyisocyanate-filler mixture and phenolic resin-filler mixture for molding
WO2000009581A3 (fr) * 1998-08-14 2001-12-13 Dow Chemical Co Agent modifiant la viscosite utilise dans une composition de resine thermodurcissable
WO2013003999A1 (fr) * 2011-07-04 2013-01-10 Dow Global Technologies Llc Produits d'addition comme durcisseurs dans des systèmes époxydes thermodurcissables
WO2015173111A1 (fr) * 2014-05-12 2015-11-19 Covestro Deutschland Ag Catalyseurs pour la synthèse de composés d'oxazolidinone
RU2574061C2 (ru) * 2011-07-04 2016-02-10 БЛЮ КЬЮБ АйПи ЭлЭлСи Аддукты в качестве отвердителей в термоотверждаемых эпоксидных системах
CN106459358A (zh) * 2014-05-12 2017-02-22 科思创德国股份有限公司 用于生产聚噁唑烷酮聚合物化合物的方法
WO2021167874A1 (fr) * 2020-02-18 2021-08-26 Covestro Llc Compositions de polyoxazolidinone
EP4011927A1 (fr) * 2020-12-10 2022-06-15 Covestro Deutschland AG Composition comprenant de l'oxazolidinone à fonction époxy
WO2022122606A1 (fr) * 2020-12-10 2022-06-16 Covestro Deutschland Ag Composition comprenant un oxazolidinone à fonction époxy

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100227090A1 (en) * 2007-10-31 2010-09-09 Zeng Kun Liao Non-sintering isocyanate modified epoxy resin for fusion bonded epoxy applications
RU2014107911A (ru) 2011-08-01 2015-09-10 ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи Виниловая сложноэфирная смола, содержащая оксазолидоновое кольцо, и продукты на ее основе
EP3750933A1 (fr) 2019-06-12 2020-12-16 Covestro Deutschland AG Procédé de production de polyoxazolidinones à terminaison de groupe d'époxy

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101498A5 (fr) * 1970-06-22 1972-03-31 Dow Chemical Co
US3721650A (en) * 1971-03-22 1973-03-20 Alelio G D Reactive hydroxyalkyl-onium catalysts for synthesis of polyoxazolidones
WO1986006734A1 (fr) * 1985-05-07 1986-11-20 The Dow Chemical Company Procede de preparation de polyoxazolidone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101498A5 (fr) * 1970-06-22 1972-03-31 Dow Chemical Co
US3721650A (en) * 1971-03-22 1973-03-20 Alelio G D Reactive hydroxyalkyl-onium catalysts for synthesis of polyoxazolidones
WO1986006734A1 (fr) * 1985-05-07 1986-11-20 The Dow Chemical Company Procede de preparation de polyoxazolidone

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0478606A4 (en) * 1989-06-06 1992-05-13 The Dow Chemical Company Epoxy-terminated polyoxazolidones, process of preparation, and electrical laminates therefrom
DE4007141C1 (fr) * 1990-03-07 1991-04-11 Felix Boettcher Gmbh & Co, 5000 Koeln, De
EP0449072A3 (en) * 1990-03-22 1992-09-16 Vianova Kunstharz Aktiengesellschaft Process for the preparation of cationic binders and their application
EP0530812A1 (fr) * 1991-09-05 1993-03-10 Nippon Paint Co., Ltd. Composition de résine thermodurcissable contenant un composant oxazolidinone polyfonctionnel et un composant polyamine
US6225377B1 (en) 1992-07-17 2001-05-01 Siemens Aktiengesellschaft Blending epoxy resin-polyisocyanate-filler mixture and phenolic resin-filler mixture for molding
WO1994002524A1 (fr) * 1992-07-17 1994-02-03 Siemens Aktiengesellschaft Melange prepolymere de resines epoxy a structures oxazolidinoniques
US5496892A (en) * 1992-07-17 1996-03-05 Siemens Aktiengesellschaft Oxazolidinone structures-containing prepolymeric epoxy resin mixture
US5591813A (en) * 1993-05-21 1997-01-07 Hitachi Chemical Company, Ltd. Amide group-containing diisocyanates and amide group-containing epoxy resins
US5625026A (en) * 1993-05-21 1997-04-29 Hitachi Chemical Company, Ltd. Amid group-containing diisocyanates and amide group-containing epoxy resins
US6670006B1 (en) 1997-03-27 2003-12-30 Mitsubishi Rayon Co., Ltd. Epoxy resin composition for FRP, prepreg, and tubular molding produced therefrom
EP0970980A4 (fr) * 1997-03-27 2000-06-14 Mitsubishi Rayon Co Composition de resine epoxyde pour plastique renforce de fibre de verre, preimpregne et moulage tubulaire produit au moyen de cette composition
WO2000009581A3 (fr) * 1998-08-14 2001-12-13 Dow Chemical Co Agent modifiant la viscosite utilise dans une composition de resine thermodurcissable
WO2000034351A1 (fr) * 1998-12-11 2000-06-15 The Dow Chemical Company Composition de resine polyoxazolidone adhesive preparee a partir de polyepoxides et de polyisocyanates
CN100379781C (zh) * 1998-12-11 2008-04-09 陶氏环球技术公司 由多环氧化物和多异氰酸酯制得的聚唑烷酮粘合剂树脂组合物
RU2574061C2 (ru) * 2011-07-04 2016-02-10 БЛЮ КЬЮБ АйПи ЭлЭлСи Аддукты в качестве отвердителей в термоотверждаемых эпоксидных системах
WO2013003999A1 (fr) * 2011-07-04 2013-01-10 Dow Global Technologies Llc Produits d'addition comme durcisseurs dans des systèmes époxydes thermodurcissables
WO2015173111A1 (fr) * 2014-05-12 2015-11-19 Covestro Deutschland Ag Catalyseurs pour la synthèse de composés d'oxazolidinone
CN106459358A (zh) * 2014-05-12 2017-02-22 科思创德国股份有限公司 用于生产聚噁唑烷酮聚合物化合物的方法
CN106459331A (zh) * 2014-05-12 2017-02-22 科思创德国股份有限公司 用于合成噁唑烷酮化合物的催化剂
CN106459331B (zh) * 2014-05-12 2019-09-13 科思创德国股份有限公司 用于合成噁唑烷酮化合物的催化剂
CN106459358B (zh) * 2014-05-12 2020-05-15 科思创德国股份有限公司 用于生产聚噁唑烷酮聚合物化合物的方法
WO2021167874A1 (fr) * 2020-02-18 2021-08-26 Covestro Llc Compositions de polyoxazolidinone
EP4011927A1 (fr) * 2020-12-10 2022-06-15 Covestro Deutschland AG Composition comprenant de l'oxazolidinone à fonction époxy
WO2022122606A1 (fr) * 2020-12-10 2022-06-16 Covestro Deutschland Ag Composition comprenant un oxazolidinone à fonction époxy

Also Published As

Publication number Publication date
JPS6420227A (en) 1989-01-24
DE3866439D1 (de) 1992-01-09
ATE69825T1 (de) 1991-12-15
DE3720759A1 (de) 1989-01-05
EP0296450B1 (fr) 1991-11-27

Similar Documents

Publication Publication Date Title
EP0296450B1 (fr) Résines époxy contenant des groupes oxazolidone
EP0232540B1 (fr) Mélanges de résine réactive thermodurcissables et procédé de préparation d'objets obtenus par moulage à partir de ces mélanges
EP0272563B1 (fr) Procédé en deux étapes pour la fabrication de produits moulés
EP0331996B1 (fr) Mélange de résine à réaction stable à l'entreposage, préparation et utilisation
EP3596147B1 (fr) Procédé destiné à la production des compositions contenant des groupes oxazolidinones
EP0129799A2 (fr) Compositions thermodurcissables de résines de réaction
DE4014847A1 (de) Neue diaminodiphenylcycloalkane, ihre herstellung und verwendung
DE2722400C2 (de) Verfahren zur Herstellung von wärmebeständigen, blasenfreien Isocyanuratgruppen aufweisenden Kunststoffen
EP0531844B1 (fr) Mélanges de résines réactives thermodurcissables, procédé de leur préparation et leur utilisation dans la préparation de masses de pressage et d'objets formés
EP0403920A2 (fr) Résines époxydes oligomères à base de diphénols particuliers et leurs dérivés avec l'acide (méth)acrylique et des diisocyanates
EP0383089B1 (fr) Mélange de résines réactives durcissant à froid et leur utilisation
EP0682048B1 (fr) Mélanges de résines réactives thermodurcissables et leur utilisation
EP0639618B1 (fr) Masses à mouler pulvérulentes pouvant s'écouler à base de résines époxyde
EP0301268B1 (fr) Procédé de préparation de résines d'esters vinyliques dans une solution de monomères vinyliques
DE2139573C3 (de) Dibromkresylglycidyläther-Isomerengemisch, Verfahren zu seiner Herstellung und seine Verwendung als Komponente zum Feuerfestmachen in Formmassen auf der Grundlage von härtbaren Epoxidharzen
DE1947001C3 (fr)
EP0148344B1 (fr) Utilisation de compositions formant des polyuréthanes comme matériaux de moulage
EP0136260B1 (fr) Mélanges durcissables contenant des cyanacétates hydroxyalkylés, et leur utilisation pour la fabrication d'objets durcis
EP0698630B1 (fr) Résines époxydes, leur préparation et utilisation
DE4107277A1 (de) Oxazolidinongruppen und isocyanuratgruppen enthaltende epoxidharze
DD298801A5 (de) Flammgehemmte reaktionsharzmassen
EP0175907B1 (fr) Procédé de fabrication d'objets moulés
DE2118919A1 (de) Polyepoxidverbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung
DE2950089A1 (de) Mit cyclischen amidinen blockiertes 3(4), 8(9)-diisocyanatomethyl -tricyclo- (5.2.1.0(pfeil hoch)2,6(pfeil hoch)) -decan und seine herstellung und verwendung
DE2037654A1 (de) Verfahren zur Herstellung ungesättigter Esterharze

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19880615

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE ES FR GB IT NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: STAMICARBON B.V.

17Q First examination report despatched

Effective date: 19900709

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19911127

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19911127

Ref country code: GB

Effective date: 19911127

Ref country code: FR

Effective date: 19911127

Ref country code: NL

Effective date: 19911127

Ref country code: SE

Effective date: 19911127

REF Corresponds to:

Ref document number: 69825

Country of ref document: AT

Date of ref document: 19911215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3866439

Country of ref document: DE

Date of ref document: 19920109

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: DSM N.V.

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19920614

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930302